diff --git a/eth-types/src/geth_types.rs b/eth-types/src/geth_types.rs
index 9c6d155e95..397699a00a 100644
--- a/eth-types/src/geth_types.rs
+++ b/eth-types/src/geth_types.rs
@@ -206,7 +206,10 @@ impl Transaction {
             .to_vec()
             .try_into()
             .expect("hash length isn't 32 bytes");
-        let v = (self.v - 35 - chain_id * 2) as u8;
+        let v = self
+            .v
+            .checked_sub(35 + chain_id * 2)
+            .ok_or(Error::Signature(libsecp256k1::Error::InvalidSignature))? as u8;
         let pk = recover_pk(v, &self.r, &self.s, &msg_hash)?;
         // msg_hash = msg_hash % q
         let msg_hash = BigUint::from_bytes_be(msg_hash.as_slice());